Bridge Bearings

Bearing Range

Pot-PTFE Bearing

Pot-PTFE bearing with elastomeric bearing pad embedded inside of the steel plate, can be divided into fixed pot bearing, guided pot bearing and free sliding pot bearing. Pot bearings are special types of bridge bearings for taking large loads, large horizontal displacements and large rotation requirements in confined areas. The loading capacity of elastomeric bearings is limited, while pot bearings solved this problem, thus pot bearings are often regarded as suitable for use when bridges need large bearing reactions.

Fixed Bearing (Fixed pot bearing)

Fixed Bearing is unmoved in all directions. Under loads, the elastomeric bearing pad behaves likes an incompressible confined fluid which enables the rotations on any axis.

Free Bearing (Free sliding pot bearing)

Free Bearing (Free sliding pot bearing) can be movable in all directions. The added PTFE and stainless-steel sliding surface between the piston and the sole plate creates a bearing assembly that allows horizontal movement in any direction.

Guided Bearing (Guided pot bearing)

Guided Bearing with steel guide edge can be only moved in one direction. The stainless-steel slide and PTFE slide further reduce the friction coefficient and guided pot bearing is used best when horizontal loads are relatively small (less than 20% of vertical Load).

Pin Fixed Bearing

A pin bearing is a type of fixed bearings that accommodates rotations through the use of a steel. Translational movements are not allowed.

Metallic Guided Bearing

Metallic guided bearing, consisting of a sliding assembly with restraint along the desired direction to bears and transmit horizontal force and capable of allowing movement in a direction perpendicular to the direction of horizontal force.

Application

Pot bearings are suitable for locations where low-profile, high-load bearing devices are required. And they are especially suited for curved or skewed bridges and other complex structures where the direction of rotation varies or cannot be precisely determined.